Question

A race car can travel at a speed of 3.4 x 10^2 miles/hour. The Speed of Sound is approximately 7.6 × 10^2 miles/hour. How many times faster is the Speed of Sound than the Bullet Train?

Answer 1

The speed of sound is 2.23 times of the speed of race car

Explanation:

Given that,

The speed of a race car =
`3.4* 10^2\ mi/h`

The speed of sound =
`7.6* 10^2\ mi/h`

Dividing the speed of sound to the speed of a race car. So,
`\frac{\text{speed of sound}}{\text{speed of race car}}=(7.6* 10^2)/(3.4* 10^2)\\\\\frac{\text{speed of sound}}{\text{speed of race car}}=2.23`

So, the speed of sound is 2.23 times of the speed of race car.